August weather forecast
North Myrtle Beach, SC

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Weather in August

August represents the closing stages of summer, with relatively high temperatures and rainfall. Despite slight drops, the temperatures boldly sustain the summer heat, shedding only a fraction of degrees from July. Signs of changing seasons start to appear with a minor decline in the hours of sunshine. The city remains a hotspot for visitors, as the glorious weather provides the ideal ambiance for a host of outdoor activities. Residents and vistiors are treated to an ample 85.6°F (29.8°C) of warmth as they soak in the last vestiges of summer.

Temperature

The dawn of August in North Myrtle Beach sees an average high-temperature of a moderately hot 85.6°F (29.8°C), subtly contrasting with July's 86.7°F (30.4°C). In North Myrtle Beach, the average low-temperature during the month of August is a still warm 74.8°F (23.8°C).

Heat index

August's heat index is estimated at a torrid 98.6°F (37°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The months with the highest humidity in North Myrtle Beach are May, June, August and December, with an average relative humidity of 78%.

Rainfall

August is the month with the most rainfall. Rain falls for 16 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

In North Myrtle Beach, snow does not fall in April through November.

Daylight

In August, the average length of the day in North Myrtle Beach is 13h and 22min.
On the first day of August in North Myrtle Beach, sunrise is at 6:27 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:41 pm EDT.

Sunshine

The average sunshine in August in North Myrtle Beach is 10.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 7 during August, leads to the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

How hot is August in North Myrtle Beach?

During August, North Myrtle Beach experiences an average high-temperature of 85.6°F (29.8°C) and a low-temperature of 74.8°F (23.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 98.6°F (37°C).

What is the most humid month in North Myrtle Beach?

May, June, August and December, with an average relative humidity of 78%, are most humid months.

What is the average humidity in August in North Myrtle Beach?

In North Myrtle Beach, South Carolina, the average relative humidity in August is 78%.

What is the wettest month in North Myrtle Beach?

The month with the most rainfall is August, when the rain falls for 16 days and typically aggregates up to 1.81" (46mm) of precipitation.

How much does it rain in North Myrtle Beach in August?

In North Myrtle Beach, during August, the rain falls for 16 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in North Myrtle Beach?

April through November are months without snowfall.

What is the average length of the day in August in North Myrtle Beach?

In August, the average day length in North Myrtle Beach, South Carolina, is 13h and 22min.

When is the sunrise / sunset in August in North Myrtle Beach?

On the first day of August, sunrise is at 6:27 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 7:41 pm EDT.

How many hours of sunshine does North Myrtle Beach have in August?

In North Myrtle Beach, the average sunshine duration in August is 10.8h.

When is the highest UV index in North Myrtle Beach?

The months with the highest UV index in North Myrtle Beach, South Carolina, are June through August, with an average maximum UV index of 7.

How high is the UV index in August in North Myrtle Beach?

The average daily maximum UV index in August in North Myrtle Beach, South Carolina, is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
North Myrtle Beach, SC

Average temperature in August - North Myrtle Beach, SC
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in August: 74.8°F

The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in August
North Myrtle Beach, SC

Average pressure in August - North Myrtle Beach, SC
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in August
North Myrtle Beach, SC

Average wind speed in August - North Myrtle Beach, SC
  • Average wind speed in August: 7.8mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in August
North Myrtle Beach, SC

Average humidity in August - North Myrtle Beach, SC
  • Average humidity in August: 78%

The months with the highest relative humidity are May, June, August and December (78%).
The month with the lowest relative humidity is January (74%).

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Average rainfall in August
North Myrtle Beach, SC

Average rainfall in August - North Myrtle Beach, SC
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is August (1.81").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in August
North Myrtle Beach, SC

Average rainfall days in August - North Myrtle Beach, SC
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is August (16 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall days in August
North Myrtle Beach, SC

Average snowfall days in August - North Myrtle Beach, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in August /
Average sunshine in August
North Myrtle Beach, SC

Average daylight in August / Average sunshine in August - North Myrtle Beach, SC
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in August
North Myrtle Beach, SC

Average sunshine days in August - North Myrtle Beach, SC
  • Average sunshine days in August: 10.8 days

The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is August (10.8 days).

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Average UV index in August
North Myrtle Beach, SC

Average UV index in August - North Myrtle Beach, SC
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in August
North Myrtle Beach, SC

Average cloud cover in August - North Myrtle Beach, SC
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in August
North Myrtle Beach, SC

Average visibility in August - North Myrtle Beach, SC
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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North Myrtle Beach, South Carolina, USA

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